Research Article
Study on Ultrasonic Characteristics and Prediction of Rock with Different Pore Sizes
Figure 11
Schematic diagram of the acoustic pressure isosurface at 70 μs for different hole size models. (a) 5 mm, (b) 10 mm, (c) 15 mm, (d) 20 mm, (e) 25 mm, and (f) 30 mm.
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